Hager
No Power to Charger / Internal Power Supply Failure
Charger completely dead: no LEDs, no display, and no response when a vehicle is plugged in.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Tripped upstream MCB/RCBO, Blown internal fuse on control board, Faulty low‑voltage power supply module, Loose line/neutral connection at charger terminals
How to Fix / Troubleshooting
Safety first: Work on supply circuits only if you are a qualified electrician. Always verify isolation before opening covers.
Steps to try:
- Check consumer unit: Locate the dedicated Hager breaker/RCBO feeding the EV charger. If tripped, reset once. If it trips again, do not force it; call an electrician.
- Check external isolator: If there is a local isolator near the charger, ensure it is in the ON position.
- Visual inspection: From the outside, check for signs of impact, water ingress, or burning. If present, isolate power and call a technician.
- Electrician diagnostics: A professional should verify voltage at the charger input terminals, inspect and tighten terminals, and test the internal low‑voltage power supply and fuses. Replace the power supply module or main control board if no low‑voltage output is present.
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Repair Difficulty
Hard
4/5
Required Part
Internal Power Supply Module
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